Integers

123456789101112131415161718
Across
  1. 2. 94-89-5-6-6-6
  2. 4. opposite of 52
  3. 5. 94+7-50
  4. 7. 20-70
  5. 8. 6x6-72
  6. 9. 14-15-2-3+122
  7. 12. opposite of -20
  8. 13. 5 digits to the left of -12
  9. 14. -9+7-9+20
  10. 15. absolute value of 400
  11. 16. -40-50-60+70
  12. 17. 19+99-71
  13. 18. opposite of 100
Down
  1. 1. absolute value of 63
  2. 3. 14+78-94
  3. 4. 12-13
  4. 6. 18-8+57
  5. 10. -180+90+80+20+100-9
  6. 11. -2-7+14
  7. 12. -5+4-3+7